Evaluation of Low-Loss Polymer Switches for Multinuclear MRI/S.
Evaluation of Low-Loss Polymer Switches for Multinuclear MRI/S.
复制标题
多核 MRI/S 低损耗聚合物开关的评估。
DOI：
10.1109/embc40787.2023.10340712
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
McDougall,MaryP
中科院分区：
文献类型：
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作者：
Touchet-Valle,Edith;Tasmim,Seelay;Ware,TaylorH;McDougall,MaryP
多核MRI/S作为临床诊断工具的实施面临着许多挑战。这些挑战之一是开发高灵敏度的多核RF线圈。当前的多调谐技术包含有损组件，其影响线圈频率中的至少一个的最高可实现SNR。因此，优化多核线圈设计仍然是射频硬件工程师的优先事项。为了应对这一挑战，探索了一种新的频率开关技术，该技术采用了刺激响应聚合物材料。Q测量值被用作单调谐、标准开关网络和所提出的开关技术之间的比较度量。与单调谐线圈相比，在新的开关方法中测得的Q损耗保持在38%以下。这些结果是一致的低损耗值报告使用传统的开关网络。此外，初步测试表明有改进的潜力。这些结果建立了新技术作为一个有前途的替代传统的开关technology.Clinical Relevancy-A低损耗的多调谐技术的MRI射频线圈有可能提高疾病的研究和诊断。
Implementation of multinuclear MRI/S as a diagnostic tool in clinical settings faces many challenges. One of those challenges is the development of highly sensitive multinuclear RF coils. Current multi-tuning techniques incorporate lossy components that impact the highest achievable SNR for at least one of the coil frequencies. As a result, optimization of multinuclear coil designs continues to be a priority for RF hardware engineers. To address this challenge, a new frequency switching technology that incorporates stimuli-responsive polymer materials was explored. Q measurements were used as a comparison metric between single-tuned, a standard switching network, and the proposed switching technology. The Q losses measured in the new switching method remained below 38% when compared to single-tuned coils. These results are consistent with low loss values reported using traditional switching networks. Furthermore, preliminary testing indicates that there is potential for improvement. These results establish the new technology as a promising alternative to traditional switching techniques.Clinical Relevance— A low loss multi-tuning technique for MRI radiofrequency coils has the potential of improving the study and diagnosis of disease.